11.31
Checking pistons and cylinders
Reference
temperature for measurements: ......20 °C (68 °F)
•
Measure cylinder bore with internal probe at
20 mm (0.79 in) and 100 mm (3.94 in) from the
top in direction of piston pin, and again at a right
angle to the first measurement.
a ............................................See Technical data
Measuring plane A:......................... 6 mm (0.24 in)
a ............................................See Technical data
•
Install piston rings in cylinder.
•
Determine piston ring clearance using feeler
gauge.
a ............................................See Technical data
Assembling pistons
•
Carefully fit piston rings to piston in the following
sequence, using piston ring pliers:
3rd groove - equal chamfer ring
2nd groove - micro-chamfer ring
1st groove - asymmetric, convex oval-section
a ............................................See Technical data
e Caution:
The tubular-spring ring gap must be at 180° to the
equal-chamfer ring gap.
Install with “Top” uppermost.
RS110180
100
20
RS110970
A
RS110200
RS110190
1.
R 850
1.2.
3.
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